Laser technology confines light inside a resonator containing a gain medium, a material with quantum properties that can amplify light. As laser resonators are generally far larger than the wavelength of light, lasing inside ...
Hollywood films and science fiction literature fuel the belief that aliens are other-worldly, monster-like beings, who are very different to humans. But new research suggests that we could have more in common with our extra-terrestrial ...
Astronomy
Nov 1, 2017
37
2036
Sexual selection refers to species' selection for traits that are attractive to the opposite sex. This special type of natural selection enhances opportunities to mate, the tail of male peacocks being an iconic example.
Evolution
Jul 9, 2014
2
0
Until today, Alfred Russell Wallace's century old map from 1876 has been the backbone for our understanding of global biodiversity. Thanks to advances in modern technology and data on more than 20,000 species, scientists ...
Ecology
Dec 20, 2012
0
0
(PhysOrg.com) -- A gene previously associated with physical traits is also dictating behaviour in a tiny fish widely regarded as a living model of Darwin's natural selection theory, according to a University of British Columbia ...
Plants & Animals
Aug 5, 2009
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0
Some of nature's mysteries have kept scientists busy for decades—for example, the processes that drive evolution. The question of whether certain differences between and within species are caused by natural selection or ...
Evolution
Oct 9, 2023
0
159
With CRISPR-Cas9 technology, humans can now rapidly change the evolutionary course of animals or plants by inserting genes that can easily spread through entire populations. Evolutionary geneticist Asher Cutter proposes that ...
Evolution
Mar 28, 2023
1
119
Darwin's finches on the Galápagos Islands are once again providing insights into the theory of evolution, with two Flinders University studies investigating their dealings with a parasitic fly.
Plants & Animals
Aug 10, 2021
0
591
A link between evolution over short time frames (microevolution) and long time frames (macroevolution) that could open new approaches to understanding some of biology's deepest questions is proposed by Dr. Owen Gilbert of ...
Evolution
Dec 8, 2020
7
601
Darwin's theory of evolution should be expanded to include consideration of a DNA stability "energy code"—so-called "molecular Darwinism"—to further account for the long-term survival of species' characteristics on Earth, ...
Biotechnology
Nov 16, 2020
9
641
